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$NetBSD: patch-src_irq.c,v 1.2 2016/02/03 15:10:43 he Exp $
Provide a port to NetBSD.
--- src/irq.c.orig 2014-09-05 08:57:01.000000000 +0000
+++ src/irq.c
@@ -27,10 +27,22 @@
#include "configfile.h"
#include "utils_ignorelist.h"
-#if !KERNEL_LINUX
+#if !KERNEL_LINUX && !KERNEL_NETBSD
# error "No applicable input method."
#endif
+#if KERNEL_NETBSD
+
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/sysctl.h>
+#include <sys/evcnt.h>
+#include <malloc.h>
+
+#endif /* KERNEL_NETBSD */
+
+
+
/*
* (Module-)Global variables
*/
@@ -90,6 +102,7 @@ static void irq_submit (const char *irq_
plugin_dispatch_values (&vl);
} /* void irq_submit */
+#if KERNEL_LINUX
static int irq_read (void)
{
FILE *fh;
@@ -183,6 +196,64 @@ static int irq_read (void)
return (0);
} /* int irq_read */
+#endif /* KERNEL_LINUX */
+
+#if KERNEL_NETBSD
+static int
+irq_read (void)
+{
+ const int mib[4] = {
+ CTL_KERN,
+ KERN_EVCNT,
+ EVCNT_TYPE_INTR,
+ KERN_EVCNT_COUNT_NONZERO
+ };
+ size_t buflen = 0;
+ void *buf = NULL;
+ const struct evcnt_sysctl *evs, *last_evs;
+
+ for (;;) {
+ size_t newlen;
+ int error;
+
+ newlen = buflen;
+ if (buflen)
+ buf = malloc(buflen);
+ error = sysctl(mib, __arraycount(mib),
+ buf, &newlen, NULL, 0);
+ if (error) {
+ ERROR("irq plugin: failed to get event count");
+ return -1;
+ }
+ if (newlen <= buflen) {
+ buflen = newlen;
+ break;
+ }
+ if (buf)
+ free(buf);
+ buflen = newlen;
+ }
+ evs = buf;
+ last_evs = (void*)((char *)buf + buflen);
+ buflen /= sizeof(uint64_t);
+ while(evs < last_evs
+ && buflen > sizeof(*evs) / sizeof(uint64_t)
+ && buflen >= evs->ev_len)
+ {
+ char irqname[80];
+
+ snprintf(irqname, 80, "%s-%s", evs->ev_strings,
+ evs->ev_strings + evs->ev_grouplen + 1);
+
+ irq_submit(irqname, evs->ev_count);
+
+ buflen -= evs->ev_len;
+ evs =(const void*)((const uint64_t *)evs + evs->ev_len);
+ }
+ free(buf);
+ return 0;
+}
+#endif /* KERNEL_NETBSD */
void module_register (void)
{
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